startNext.sh

NEXTJS_PORT=3000
watchdog=5
counter=0

check_and_set_next_port() {
    if lsof -Pi :$NEXTJS_PORT -sTCP:LISTEN -t >/dev/null && [ "$counter" -lt $watchdog ]; then
        echo "NextJS port $NEXTJS_PORT already occupied, changing to the next consecutive port"
        NEXTJS_PORT=$((NEXTJS_PORT+1))
        counter=$((counter+1))
        check_and_set_next_port
    elif [ "$counter" -ge $watchdog ]; then
        echo "\033[31mUnable to allocate an empty port for NextJS, the last tried port was $NEXTJS_PORT\e[0m"
        echo "Please either change the $NEXTJS_PORT to an other random number/unused port number"
        echo "After changes re-run the script"
        exit 1
    else
        echo "🚀 An empty port found for NextJS 🚀"
    fi
}
check_and_set_next_port


export NEXT_PUBLIC_PORT=$NEXTJS_PORT

if [ "$2" = 'production' ]; then
    printf '\nNEXT_PUBLIC_API_URL'="https://$1:$NEXTJS_PORT" >> app/.env
    echo "--Starting NextJS Production Client--"
    cd app
    docker-compose up -d
else
    printf '\nNEXT_PUBLIC_API_URL'="http://$1:$NEXTJS_PORT" >> app/.env
    echo "--Starting NextJS Development Client--"
    cd app
    npm i
    npm run dev
fi